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We have presented a search for BSM physics in the opposite-sign dilepton final state using |
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a data sample of proton-proton collisions at 7~TeV centre-of-mass energy corresponding to an integrated |
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luminosity of \lumifinal, recorded by the CMS detector in 2010. |
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luminosity of \lumifinal, recorded by the CMS detector in 2011. |
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The search focused on dilepton events with large missing transverse energy and significant hadronic activity, |
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motivated by many models of BSM physics, such as supersymmetric models. |
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Good agreement with standard model predictions was found, both in terms of event yields and shapes of |
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various relevant kinematic distributions. In the absence of evidence for BSM physics, |
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we have set upper limits on the non-SM contributions to the signal regions. The result was interpreted |
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in the context of the CMSSM parameter space and the excluded region was found to exceed those set by |
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previous searches at the Tevatron and LEP experiments. |
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Information on the acceptance and efficiency of the search was also provided to |
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allow testing the exclusion of specific models of BSM physics. |
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we have set upper limits on the non-SM contributions to the signal regions. |
